Casio SGW100 Series Digital Watch & Compass Instruction Manual

1. Introduction and Overview

This manual provides detailed instructions for the setup, operation, and maintenance of your Casio SGW100 Series Digital Watch, Model SGW-100-1V. This robust timepiece is equipped with twin sensors for digital compass and thermometer readings, 200-meter water resistance, a 1/100-second stopwatch, world time, and multiple alarm functions, making it suitable for various outdoor activities and daily use.

Figure 1: Front view of the Casio SGW-100-1V Digital Watch, displaying time, date, and compass bezel.

2. Key Features

• Twin Sensor: Integrated digital compass and thermometer for environmental data.
• Water Resistance: 200 meters (660 feet), suitable for swimming and diving.
• Stopwatch: 1/100-second stopwatch with a measuring capacity of 59'59.99".
• World Time: Displays current time in major cities and specific areas around the world.
• Alarms: Multiple daily alarms with snooze function.
• Auto Calendar: Pre-programmed until the year 2099.
• Low Temperature Resistant: Operates reliably in cold conditions.
• Illuminator: Backlight for easy reading in low light conditions.

3. Setup and Initial Configuration

3.1 Setting Time and Date

1. In Timekeeping Mode, press and hold the ADJUST button (top left) until the city code starts to flash.
2. Use the SEARCH button (bottom right) to select your desired city code.
3. Press the MODE button (bottom left) to cycle through the settings: DST (Daylight Saving Time), 12/24-hour format, seconds, hour, minute, year, month, and day.
4. Use the SEARCH button (bottom right) to change the flashing value.
5. Once all settings are correct, press the ADJUST button to exit the setting mode.

3.2 Setting World Time

1. From Timekeeping Mode, press the MODE button to navigate to World Time Mode.
2. Use the SEARCH button (bottom right) to scroll through different city codes/time zones.
3. The watch will display the current time for the selected city.

3.3 Setting Alarms

1. From Timekeeping Mode, press the MODE button until you reach the Alarm Mode.
2. Use the SEARCH button (bottom right) to select one of the five available alarms (AL1 to AL5) or the Snooze Alarm (SNZ).
3. Press and hold the ADJUST button (top left) until the alarm time starts to flash.
4. Use the MODE button to switch between hour and minute settings.
5. Use the SEARCH button to change the flashing value.
6. Press the ADJUST button to confirm and exit.
7. To turn an alarm on/off, select the alarm and press the ADJUST button.

4. Operating the Watch

4.1 Digital Compass

1. From Timekeeping Mode, press the COMP button (bottom right) to enter Compass Mode.
2. Hold the watch level and away from magnetic interference (e.g., large metal objects, other electronic devices).
3. The watch will display the current direction (e.g., N, NE, SW) and a graphic direction pointer.
4. For accurate readings, perform a bidirectional calibration as described in the full user manual if needed.

4.2 Thermometer

1. The thermometer reading is displayed in Compass Mode, alongside the compass direction.
2. For an accurate ambient temperature reading, remove the watch from your wrist for at least 20-30 minutes to avoid body heat interference.
3. The display range is -10 to 60 ℃ (14 to 140 ℉), with a display unit of 0.1 ℃ (0.2 ℉).

4.3 Stopwatch

1. From Timekeeping Mode, press the MODE button to navigate to Stopwatch Mode.
2. Press the SEARCH button (bottom right) to start and stop the stopwatch.
3. Press the ADJUST button (top left) to reset the stopwatch to zero.
4. The stopwatch measures up to 59 minutes, 59.99 seconds.

4.4 Countdown Timer

1. From Timekeeping Mode, press the MODE button to navigate to Timer Mode.
2. Press and hold the ADJUST button (top left) to set the countdown start time.
3. Use the MODE button to switch between hour and minute settings, and the SEARCH button to change the values.
4. Press ADJUST to confirm.
5. Press the SEARCH button to start and stop the countdown.

4.5 Backlight (Illuminator)

• Press the LIGHT button (top right) to illuminate the display for a few seconds.

5. Maintenance

5.1 Water Resistance

• The watch is water resistant to 200 meters. This means it is suitable for recreational scuba diving.
• Do not operate buttons while the watch is wet or submerged in water to prevent water ingress.
• After exposure to saltwater, rinse the watch thoroughly with fresh water and wipe it dry.

5.2 Battery Replacement

• The watch uses one CR2025 battery, with an approximate life of 3 years.
• Battery replacement should be performed by a qualified technician to ensure proper water resistance sealing.

5.3 Cleaning

• Wipe the watch case and band with a soft, dry cloth.
• For resin bands, use a soft brush and soapy water to remove dirt, then rinse and dry thoroughly.

6. Troubleshooting

• Incorrect Time/Date: Ensure the city code is correctly set for your region and DST (Daylight Saving Time) is adjusted if applicable. Refer to Section 3.1.
• Inaccurate Compass Readings: Calibrate the compass away from magnetic interference. Refer to the full user manual for detailed calibration steps.
• Inaccurate Temperature Readings: Remove the watch from your wrist for 20-30 minutes to allow it to acclimate to ambient temperature. Body heat significantly affects readings when worn.
• Display is Dim/Blank: The battery may be low or depleted. Replace the battery as per Section 5.2.
• Buttons Not Responding: Ensure the watch is not in a special mode that locks buttons. If wet, dry the watch thoroughly before operating buttons.

7. Specifications

8. Warranty and Support

Your Casio SGW-100-1V watch is covered by a manufacturer's warranty. Please refer to the warranty card included with your purchase for specific terms and conditions, including warranty period and service procedures. For further assistance or detailed inquiries, please visit the official Casio support website or contact their customer service department.

Figure 2: The Casio SGW-100-1V watch displayed on a wrist, showcasing its fit and digital display.

Figure 3: The packaging box for Casio products, typically containing the watch and documentation.